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12292472 = 231579787
BaseRepresentation
bin101110111001…
…000101111000
3212010112002202
4232321011320
511121324342
61115245332
7206325053
oct56710570
925115082
1012292472
116a36575
124149848
13271516a
1418bda9a
15112c332
hexbb9178

12292472 has 16 divisors (see below), whose sum is σ = 23197560. Its totient is φ = 6106464.

The previous prime is 12292471. The next prime is 12292477. The reversal of 12292472 is 27429221.

It is a super-2 number, since 2×122924722 = 302209735741568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12292471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638 + ... + 6149.

Almost surely, 212292472 is an apocalyptic number.

It is an amenable number.

12292472 is a deficient number, since it is larger than the sum of its proper divisors (10905088).

12292472 is a wasteful number, since it uses less digits than its factorization.

12292472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9950 (or 9946 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 12292472 is about 3506.0621785701. The cubic root of 12292472 is about 230.7879215175.

The spelling of 12292472 in words is "twelve million, two hundred ninety-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 157 314 628 1256 9787 19574 39148 78296 1536559 3073118 6146236 12292472